Kelly Rowland and Tim Witherspoon marry in small Costa Rica wedding on May 9Credit: Splash News

http://www.usmagazine.com/celebrities/kelly-rowland" rel="nofollow - Kelly Rowland is officially a married woman! The Destiny's Child singer wed her manager and boyfriend Tim Witherspoon on May 9 in Costa Rica, multiple sources confirm to Us Weekly.

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The 33-year-old singer was reportedly joined by pal http://www.usmagazine.com/celebrities/beyonce-knowles" rel="nofollow - Beyonce and her sister http://www.usmagazine.com/celebrities/solange-knowles" rel="nofollow - Solange for the big day. (The duo jetted off in a private plane http://www.usmagazine.com/celebrity-news/news/solange-knowles-argued-with-rachel-roy-before-jay-z-fight-met-gala-2014125" rel="nofollow - after their Met Gala drama , where Solange physically attackedhttp://www.usmagazine.com/celebrities/jay-z" rel="nofollow - Jay Z in an elevator.)

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"It was a quick, simple ceremony -- only around 30 people," a source tells Us of the nuptials.

Beyonce http://instagram.com/p/n0RhPlvw2Q/" rel="nofollow - took to her Instagram the same day to share a shot of herself in what appeared to be a bridesmaids dress, captioning the photo with a mere: "Good morning."

The "Kisses Down Low" singer http://www.usmagazine.com/celebrity-news/news/kelly-rowland-confirms-engagement-tim-witherspoon-skype-proposal-20131712" rel="nofollow - confirmed the duo's engagement back in December 2013 during an appearance on The Queen Latifah Show. "He put a ring on it," she admitted, adding, "It's been a while. We've kept it very, very low -- for years, to be completely honest."

Rowland added he proposed on Skype! "It was so late -- we were just staring at each other," she said of the moment before he popped the question.